2002 NISSAN XTERRA engine oil

Automatic transmission fluid level*
Check the level after putting the selector
lever in P with the engine idling at operating
temperature.
Engine coolant level*Check the coolant
level when the engine is cold.
Radiator and hosesCheck the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks, de-
formation, rot or loose connections.
Engine drive belts*Make sure the drive
belts are not frayed, worn, cracked or oily.
Battery*Check the fluid level in each cell. It
should be between the MAX and MIN lines.
Vehicles operated in high temperatures or
under severe conditions require frequent
checks of the battery fluid level.
Exhaust systemMake sure there are no
loose supports, cracks or holes. If the sound
of the exhaust seems unusual or there is a
smell of exhaust fumes, immediately have
the exhaust system inspected by an autho-
rized NISSAN dealer. See the carbon mon-
oxide warning in the ``Starting and driving''
section of this manual.UnderbodyThe underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances from the underbody, otherwise rust
may form on the floor pan, frame, fuel lines
and exhaust system. At the end of winter,
the underbody should be thoroughly flushed
with plain water, in those areas where mud
and dirt may have accumulated. See the
``Appearance and care'' section of this
manual.
Fluid leaksCheck under the vehicle for
fuel, oil, water or other fluid leaks after the
vehicle has been parked for a while. Water
dripping from the air conditioner after use is
normal. If you should notice any leaks or if
gasoline fumes are evident, check for the
cause and have it corrected immediately.When performing any inspection or mainte-
nance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
OPark the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For manual trans-
mission models, move the shift lever
to N (Neutral). For automatic trans-
mission models, move the shift lever
to P (Park).
OBe sure the ignition key is in the OFF
or LOCK position when performing
any parts replacement or repairs.
ONever leave the engine or automatic
transmission related component
harnesses disconnected while the
ignition switch is in the ON position.
ONever connect or disconnect the bat-
tery or any transistorized compo-
nent while the ignition switch is in
the ON position.
MAINTENANCE
PRECAUTIONS
Maintenance and do-it-yourself8-5
ZX

OIf you must work with the engine run-
ning, keep your hands, clothing, hair
and tools away from moving fans,
belts, and any other moving parts.
OIt is advisable to secure or remove
any loose clothing and remove any
jewelry, such as rings, watches, etc.
before working on your vehicle.
OAlways wear eye protection when-
ever you work on your vehicle.
OIf you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
ONever get under the vehicle while it
is supported only by a jack. If it is
necessary to work under the vehicle,
support it with safety stands.
OKeep smoking materials, flame and
sparks away from the fuel tank and
battery.
OOn gasoline engine models with the
multiport fuel injection (MFI) system,
the fuel filter or fuel lines should be
serviced by an authorized NISSAN
dealer because the fuel lines are
under high pressure even when the
engine is off.
CAUTION
ODo not work under the hood while
the engine is hot. Turn the engine off
and wait until it cools down.
ONever connect or disconnect either
the battery or any transistorized
component connector while the igni-
tion is on.
ONever leave the engine or automatic
transmission related component
harnesses disconnected while the
ignition switch is in the ON position.
OAvoid contact with used engine oil
and coolant. Improperly disposed
engine oil, engine coolant and/or
other vehicle fluids can damage the
environment. Always conform to lo-
cal regulations for disposal of ve-
hicle fluid.
This ``Maintenance and do-it-yourself'' sec-
tion gives instructions regarding only those
items which are relatively easy for an owner
to perform.
A genuine NISSAN Service Manual is also
available. See ``Owner's Manual/ServiceManual Order Information'' in the ``Technical
and Consumer Information'' Section.
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and
could affect your warranty coverage.If in
doubt about any servicing, have it done
by an authorized NISSAN dealer.
8-6Maintenance and do-it-yourself
ZX

1. Power steering fluid reservoir
2. Automatic transmission fluid dipstick (A/T
model)
3. Air cleaner
4. Engine oil filler cap
5. Engine oil dipstick
6. Brake fluid reservoir
7. Clutch fluid reservoir (M/T model)
8. Windshield washer fluid reservoir
9. Radiator cap
10. Coolant reservoir
11. Battery
WDI0087
KA24DE
ENGINE COMPARTMENT
CHECK LOCATIONS
Maintenance and do-it-yourself8-7
ZX

1. Fuse/fusible link holder
2. Power steering fluid reservoir
3. Automatic transmission fluid dipstick (A/T
model)
4. Brake fluid reservoir
5. Clutch fluid reservoir (M/T model)
6. Air cleaner
7. Windshield washer fluid reservoir
8. Engine oil dipstick
9. Radiator cap
10. Engine oil filler cap
11. Coolant reservoir
12. Battery
WDI0088
8-8Maintenance and do-it-yourself
ZX

1. Fuse/fusible link holder
2. Power steering fluid reservoir
3. Automatic transmission fluid dipstick (A/T
model)
4. Supercharger
5. Brake fluid reservoir
6. Air cleaner
7. Windshield washer fluid reservoir
8. Engine oil dipstick
9. Radiator cap
10. Engine oil filler cap
11. Coolant reservoir
12. Battery
WDI0089
Maintenance and do-it-yourself8-9
ZX

If the cooling system frequently requires
coolant, have it checked by an autho-
rized NISSAN dealer.
CHANGING ENGINE COOLANT
An authorized NISSAN dealer can change
the engine coolant. The service procedure
can be found in the NISSAN Service
Manual.
Improper servicing can result in reduced
heater performance and engine over-
heating.
WARNING
OTo avoid the danger of being
scalded, never change the coolant
when the engine is hot.
ONever remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator.
OAvoid direct skin contact with used
coolant. If skin contact is made,
wash thoroughly with soap or hand
cleaner as soon as possible.OKeep coolant out of reach of children
and pets.
Engine coolant must be disposed of
properly. Check your local regulations.
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface and
apply the parking brake.
2. Start the engine and let it idle until it
reaches operating temperature.
3. Turn off the engine.Wait a few minutes
for the oil to drain back into the oil
pan.
WDI0090
ENGINE OIL
Maintenance and do-it-yourself8-11
ZX

4. Remove the dipstick and wipe it clean.
Reinsert it all the way.5. Remove the dipstick again and check the
oil level. It should be between the H
(High) and L (Low) marks. If the oil level
is below the L (Low) mark, remove the oil
filler cap and pour recommended oil
through the opening.Do not overfill.6. Recheck oil level with dipstick.
It is normal to add some oil between oil
maintenance intervals or during the
break-in period, depending on the sever-
ity of operating conditions.
CAUTION
Oil level should be checked regularly.
Operating the engine with an insuffi-
cient amount of oil can damage the
engine, and such damage is not cov-
ered by warranty.
WDI0091ADI1061WDI0092
8-12Maintenance and do-it-yourself
ZX

CHANGING ENGINE OIL
1. Park the vehicle on a level surface and
apply the parking brake.
2. Start the engine and let idle until it
reaches operating temperature, and then
turn it off.
3. Remove the oil filler cap.
4. Place a large drain pan under the drain
plug.5. Remove the drain plug with a wrench and
completely drain the oil.
If the oil filter is to be changed, remove
and replace it at this time. See ``Chang-
ing engine oil filter'' later in this section.
WARNING
OProlonged and repeated contact with
used engine oil may cause skin can-
cer.
OTry to avoid direct skin contact with
used oil. If skin contact is made,
wash thoroughly with soap or hand
cleaner as soon as possible.
OKeep used engine oil out of reach of
children.
CAUTION
Be careful not to burn yourself. The
engine oil is hot.
OWaste oil must be disposed of prop-
erly.
OCheck your local regulations.
6. Clean and reinstall the drain plug and a
new washer. Securely tighten the drain
plug with a wrench. Do not use excessive
force.
Drain plug tightening torque:
22 to 29 ft-lb (29 to 39 Nzm)ADI1063WDI0093
Maintenance and do-it-yourself8-13
ZX